Bring a large pot of salted water to a boil and cook the chickpea pasta until al dente.
In a skillet over medium heat, sauté the diced pancetta until the fat renders and it becomes crispy.
Add the diced chicken breast and minced garlic to the skillet, cooking until the chicken is browned and opaque throughout.
Whisk the egg, parmesan cheese, and black pepper together in a small bowl until well combined.
Drain the pasta, reserving a small amount of the starchy cooking water.
Remove the skillet from heat and add the hot pasta, tossing it with the chicken and pancetta.
Pour the egg mixture over the pasta, stirring rapidly to create a creamy, velvety sauce without curdling the eggs.
Thin the sauce with a tablespoon of reserved pasta water if a smoother consistency is desired.
Season with sea salt and garnish with fresh parsley before serving warm.